ARMs Offer Significant Savings Over Fixed-Rate Mortgages – NMP Skip to main content

ARMs Offer Significant Savings Over Fixed-Rate Mortgages

Mar 23, 2026
ARMs Offer Significant Savings
Staff Writer

Data shows short-term borrowers positioned to benefit as refinance window remains likely

The spread between fixed-rate and adjustable-rate mortgages (ARMs) has reached its widest point in over four years, allowing homebuyers who choose ARMs to reduce their monthly payments by $150. A Redfin analysis indicates that the typical homebuyer would save $150 per month by selecting an adjustable-rate mortgage instead of a 30-year fixed-rate mortgage. This represents a 5.8% discount, the largest ARM users have experienced in both dollar and percentage terms since June 2022.

This significant difference prompts Redfin to recommend that homebuyers discuss ARM options with their lenders. Conversely, mortgage professionals should proactively inform borrowers about the potential benefits of adjustable-rate mortgages.

ARM Rates Provide Substantial Savings

In mid-March, the average ARM rate for homebuyers was 5.51%, while the average 30-year fixed-rate mortgage was 6.19%. This 0.68 percentage point difference translates to a notable monthly saving. For instance, the typical monthly payment for a homebuyer utilizing an ARM was $2,578, compared to $2,727 for those opting for a fixed rate.

Overall mortgage rates are lower than they were a year ago, but ARM rates have declined more significantly than fixed-rate loans. In mid-March, the average ARM rate of 5.51% was down from 6.38% a year prior, while the average 30-year fixed rate of 6.19% was down from 6.77%. Bill Banfield, chief business officer at Rocket, which owns Redfin, said that choosing an ARM "could be a game-changer," particularly for first-time homebuyers.

Understanding ARM Structure And Benefits

While fixed-rate loans offer consistent principal and interest payments, ARM payments can change after their initial fixed period expires. However, ARMs can be a strategic choice for borrowers who anticipate remaining in their homes for a shorter duration. Borrowers also have the option to refinance an ARM before its fixed period concludes. Redfin suggests there is a "fairly good chance rates will fall enough during the fixed-rate period that it makes sense to refinance."

Adjustable-rate loans are less risky than in the past due to new rules implemented after the financial crisis to protect borrowers. These rules include interest-rate caps, which limit how much the rate can increase each term and over the life of the loan. Additionally, borrowers often must qualify for an ARM based on a higher potential rate, providing a buffer in their budget if rates do increase.

According to the National Mortgage Database, the typical mortgage lasts between four and seven years before the borrower refinances or sells their home. This data suggests that homeowners with an ARM featuring a seven- or 10-year fixed-rate period may never reach the adjustable-rate phase of their loan.

About the author
Staff Writer
Lew Sichelman has been covering the housing and mortgage sectors for 52 years. His syndicated column appears in major newspapers throughout the country.
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